Wallabies hooker Stephen Moore has been ruled out of the Rugby Championship clash against the Springboks on Saturday.

Moore sustained a hamstring injury at a training session on Thursday, and was subsequently sent for scans to assess the damage. Later on Thursday, Moore confirmed via Twitter that he would not be playing in Saturday’s game.

Tatafu Polota-Nau will now start in the front row, and Saia Faingaa will join the match 22 as hooker cover.